Do certain weather conditions lead to more home runs?

Yes! Weather conditions change the distance a batted ball travels by more than 20%. Home Run Forecast provides a simple indication of how weather will help or hinder baseball flight during a game. The HRFI demonstrates a strong correlation with HRs hit and runs scored in big league games. Check out our Premium Subscription for on-demand forecast data by team and game.

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HRF forecast value available for each contest, with detailed data throughout the game.

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Current Weather Conditions and HRF Index

The table below shows the Home Run Forecast Index (HRFI) value for each big league ballpark. The HRFI ranges from 1 to 10, with 10 indicating the most favorable weather conditions for ball fight and 1 indicating least favorable. Learn more about how we calculate this index here.

This data is updated hourly at the top of the hour. For ballparks with a retractable roof, the index is calculated for open roof conditions. Check local sources for roof status. For ballparks with a permanent roof, the index is calculated for indoor conditions.

Ballpark Location Sky Cover Temperature (°F) Home Run Forecast Index™
Cincinnati, OH scattered clouds 68 8
Cleveland, OH overcast clouds 69 8
Houston, TX scattered clouds 74 8
West Palm Beach, FL scattered clouds 81 8
Jupiter, FL scattered clouds 82 7
Detroit, MI overcast clouds 68 7
Phoenix, AZ scattered clouds 71 7
Anaheim, CA scattered clouds 54 5
Arlington, TX overcast clouds 67 5
Atlanta, GA broken clouds 69 5
Tampa Bay, FL clear sky 79 5
Miami, FL scattered clouds 81 4
Pittsburgh, PA overcast clouds 63 4
San Diego, CA overcast clouds 57 4
St. Louis, MO clear sky 59 4
Toronto, ON overcast clouds 52 4
Washington, DC overcast clouds 58 4
Mexico City, México scattered clouds 68 3
Baltimore, MD overcast clouds 57 3
Chicago (AL), IL broken clouds 54 3
Chicago (NL), IL broken clouds 53 3
Denver, CO broken clouds 52 3
Dyersville, IA overcast clouds 54 3
Kansas City, MO clear sky 53 3
Los Angeles, CA scattered clouds 52 3
Milwaukee, WI clear sky 54 3
Minneapolis, MN clear sky 54 3
Boston, MA broken clouds 50 1
Bronx, NY overcast clouds 50 1
Oakland, CA few clouds 45 1
Philadelphia, PA overcast clouds 51 1
Queens, NY overcast clouds 51 1
San Francisco, CA few clouds 46 1
Seattle, WA overcast clouds 49 1
Williamsport, PA overcast clouds 51 1
Data last updated: 1714917366
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